Stop motion apparatus for textile machines



A. B NIVENS ETAL STOP MOTION APPARATUS FOR TEXTILE MACHINES Filed June 12, 1964 April 4, 1967 3 Sheets-Sheet 1 w W Fr/h :EEEE

ALLEN B. NwENsand JAME$ ARTHURERAYHELB INVEN l ORSi ATTORNEY S April 4, 1967 A. B. NIVENS ETAL. v 'sToP MOTION APPARATUS FOR TEXTILE MACHINES Filed June 12, 1964 5 Sheets-Sheet 2 INVENTORS:

. ALLEN B. NWENS ancZJAMEs ARTHUR F. WEAYHELB BYWEwMW April 4, 1967 A. B. NlVENS ETAL STOP MOTION APPARATUS FOR TEXTILE MACHINES 3 Sheets-sheaf, 8

INVENTORS'.

F )EL is ATTORNEYS EN B NW5 5 ARTHUR F RAY Au. and JAME z w Q a...

7 Filed June 12, 1964 Who/t UnitedStates Patent 3,311,953 STOP MOTION APPARATUS FOR TEXTILE MACHINES Allen B. Niveus, Gastonia, and James Arthur F. Rayfield,

Stanley, N.C., assignors to Ideal Industries, Inc., Bessemer City, N.C., a corporation of North Carolina Filed June 12, 1964, Ser. No. 374,738

12 Claims. (Cl. 19.23)

This invention relates to apparatus for automatically stopping a textile machine having drafting instrumentalities, a coiler mechanism and a can or receptacle, such as a draw frame, for example, when the weight per unit length of textile strand material, such as sliver, being delivered by the drafting instrumentalities increases or decreases a predetermined amount from a predetermined standard, or in the event the textile material is broken or parted, or when the coiled sliver in the can exceeds the capacity thereof.

In textile drawing frames, after a group of textile slivers have been drafted by passing through drafting rolls, the material being delivered by the front drafting rolls is of considerable width and is in the form of a web, which web is conventionally directed through a condenser which normally takes the form of an elongate guide device having a flared entrance end for receiving the web and a reduced delivery end portion for thus transforming the web passing therethrough into a loosely formed condensed sliver substantially circular in cross section. The thus condensed sliver is then directed into a trumpet which further condenses and compacts the sliver and in turn directs the sliver through a pair of calender rolls which in turn feed the sliver to a coiler mechanism from whence the sliveris coiled into a suitable can or receptacle.

As is well known during normal operation of a textile draw frame, 'gilling machine, etc., the sliver passing through the trumpet exerts a downward force on the same and causes the trumpet and a pivotally mounted trumpet arm to move downwardly with suitable counterbalance means being provided to oppose this downward force for obtaining a desired normal operating position of the trumpet and trumpet arm. However, in the event the sliver passing through the trumpet decreases a predetermined amount, the force on the trumpet will be reduced, thus causing the counterbalance means to raise thetrumpet and through suitable means stop the textile machine. A similar upward movement of the trumpet takes place for stopping the textile machine when the sliver is parted or broken. On the other hand, in the event the sliver passing through the trumpet increases a predetermined amount from the desired standard, the

force exerted on the trumpet causes the trumpet to be lowered from the normal position, with suitable means being provided for also stopping the textile machine. A similar downward movement of the trumpet takes place to stop the textile machine in the event the sliver bunches up or becomes choked in the throat of the trumpet.

As is also well known during normal operation of a textile draw frame, gilling machine, etc., the sliver is coiled by the coiler mechanism in a suitable can or receptacle. Counting means are normally provided for stopping operation of the textile machine when a predetermined amount of sliver is coiled by the coiler mechanism into the can or receptacle. However, for example, if a partially filled can is placed under the coiler mechanism, the sliver capacity of the can will be exceeded be fore the counting means is actuated to stop operation of the textile machine, thus causing possible damage to the textile machine. Means are conventionally provided for stopping operation of the textile machine when the coiled sliver in the can exceeds the capacity thereof and operates "ice in response to raising of the coiler mechanism by the coiled sliver.

Numerous devices are known for stopping a textile machine in the manners described. These devices in-- clude means for sensing the positional arrangement of the trumpet or trumpet arm and means for sensing the positional arrangement of the coiler mechanism. However, these prior devices do not include a single means for sensing both the positional arrangement of the trumpet arm and the coiler mechanism to effect stopping of the textile machine in the event that any of the above three conditions occur. Moreover, all these known devices are relatively complex and do not have the sensitivity that is .desired for quick stopping, particularly in high speed machine operations wherein sliver is being delivered at the rate of 750 to 1500 feet per minute.

With the foregoing in mind, it is the primary object of this invention to provide a greatly simplified, highly sensitive stop motion in association with a trumpet arm and a coiler mechanism for stopping a textile machine when the sliver moving through the trumpet varies a predetermined amount from a predetermined desired standard or when the sliver is parted, or when the coiled sliver in the can or receptacle exceeds the capacity thereof.

It is a more specific object to provide an electrical stop motion wherein means are provided for obtaining the desired sensitivity of operation thereof in accordance with the standard of sliver uniformity desired.

A further more specific object is to provide an electrical stop motion as applied to a trumpet arm and to a coiler mechanism and wherein the major components thereof are positioned below the trumpet arm and shielded by the trumpet arm to minimize any interference by lint and wherein a number of these components are carried by the trumpet arm for being readily accessible for adjustment thereof by merely pivoting the trumpet arm to the raised position.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in conjunction with the accompanying drawings, in

which:

FIGURE 1 is a cross-sectional side elevational view broken away of a textile machine having the automaticv means of this invention;

FIGURE 3 is a view taken substantially along the line 33 of FIGURE 1 illustrating the switch actuating means of this invention; and

FIGURE 4 is a perspective view of the machine and apparatus illustratedin FIGURE 1 showing the adjustable elements of this invention in position for adjustment by an operator;

FIGURE 5 is a View similar to FIGURE 1 illustrating the component parts of the apparatus in the stopping position occurring when the sliver in the can has eX- ceeded the capacity thereof;

FIGURE 6 is a view taken substantially along the lines 6-6 of FIGURE 5 illustrating the positional arrangement of the switch actuating means therein.

Referring now to the drawings, there is illustrated in FIGURES 1, 4 and 5, a textile machine having a stationary frame 10, drafting rolls 11 drivingly mounted for rotation on the stationary frame in the conventional manner, a condenser or trough 12, a trumpet arm 13 mounted on the stationary machine 10 for pivotal movement about a horizontal axis, a hollow trumpet 14 carried by the trumpet arm, and a pair of calendar rolls 15 mounted for driving rotation in a conventional manner. The machine further includes a coiler mechanism 16 below the the textile machine.

calender rolls 15 and comprising a coiler cover 17, a tube gear 17a rotatably mounted on and carried by the cover which cover in turn rests on a spectacle plate 17b. A can or-receptacle 18 is disposed directly below the coiler mechanism.

This textile machine operates in the manner understood by those with ordinary skill in the art to pass a continuous stream of sliver S through the drafting rolls 11, down the condenser 12, through the trumpet 14 on trumpet arm 13, through the calender rolls 15, through the coiler mechanism 16, and into the can 18.

Normally, counting means (not shown) are provided to stop operation of the textile machine when a predetermined amount of sliver has been coiled by the coiler mechanism 16 into the can 18.

It is desirable in this type of textile machine that the flow of sliver S maintain a predetermined standard of weight per unit length as it moves through the trumpet 14. If the sliver S increases or decreases a predetermined amount from the standard or if it parts or becomes broken, it is desirable to stop the operation of the textile machine. It is also desirable to stop operation of the textile machine if the coiled sliver S in the can 18 exceeds the capacity thereof which will occur if the can 18 has sliver S or other material therein when the counting means begins measuring the amount of sliver being coiled by the coiler mechanism 16.

The position of the trumpet 14 carried by the trumpet arm 13 relative to the condenser 12 and to the calender rolls 15 is also important, as may be appreciated by those with ordinary skill in the art. To correctly position the trumpet arm :13 and trumpet 14 in a normal operating position, as shown in solid lines in FIGURE 1, and for actuating the automatic stopping mechanism which will be hereinafter described, first and second adjustable spring means 19 and 20 are provided.

These spring means 19 and 20 comprise threaded screw members 21 and 22 which are adjustably mounted on and depend from the underside of the trumpet arm 13. Lock nuts 24 and 25 may be provided for retaining the screw members 21 and 22 in the desired adjusted positions. As may be seen in FIGURE 2, the spring means 19 and 20 further include longitudinally extending sleeve members 26 and 27 which are slidably carried on screw members 21 and 22 and extend beyond the heads of screw members 21 and 22 on the free end thereof. Compression springs 30 and 31 are disposed between sleeve members 26 and 27 and lock nuts 24 and 25 so that the sliding sleeve members 26 and 27 will be extended beyond the heads of the screw members 21 and 22 to provide a resilient abutting surface to contact the coiler cover 17 of The screw member 22 of spring means 20 is adjusted to extend slightly below the screw member 21'of spring means 19 (FIGURE 2) so that the resilient abutting surface of spring means 20 will be below that of spring means 19 when no sliver is passing through the trumpet, for purposes hereinafter described.

.As may be seen in FIGURES 1 and 2, the spring means 19 and 20 are in the positions which they assume when the trumpet 13 and trumpet arm 14 are in the normal operating position N when sliver S of the desired standard of weight is passing through trumpet 14, which sliver applies a downward force on the pivoted trumpet arm 13. The compression spring 30 is a heavy compression spring which will not be compressed by this downward force on the trumpet arm 13. However, compression spring 31 is a light spring of longer effective length which will be compressed slightly by this downward force, as illustrated in FIGURE 2 by the space 28 appearing between the underside of the head of screw member 22 and the opposing surface of the sleeve 27. This slight compression of the spring means 19 will be maintained, unless the sliver S decreases a predetermined amount from the predetermined standard of weight per unit length or becomes parted, at which time the downward forces compressing the spring means 20 will be diminished or eliminated depending on the particular condition occurring. The spring means 20 will then be permitted to extend thus raising the trumpet arm 13 and trumpet 14 to a raised position A, shown in dotted lines in FIGURE 1. This raising action of the pivoted trumpet arm will stop operation of the machine, as will be hereinafter described.

The spring means 19, being a heavy compression spring, will maintain the pivoted trumpet arm 13 in its normal operating position N relative to any downward movement of the trumpet arm which would be caused by gravity and the normal downward forces produced by the desired standard weight sliver moving through the trumpet. However, if the sliver moving through trumpet 14 increases a predetermined amount from the predetermined standard of weight per unit length, additional downward forces on the trumpet will occur which will overcome the heavy spring 31 to move the trumpet arm downwardly to a lowered position B, shown in dotted lines in FIG- URE 1. This downward movement of the trumpet arm 13 will also stop operation of the machine, as will be described hereinafter. A similar operation occurs when the sliver S becomes choked in the trumpet.

Referring now to FIGURE 5, the spring means 19 and 20 will maintain the trumpet arm 13 in its normal operating position N, illustrated in dotted lines for the reasons stated above. If the sliver S in the can 18 exceeds the capacity thereof, it will exert an upward force on the underside of the coiler mechanism 16 to thus raise the coiler mechanism, as shown in FIGURE 5, and thereby raise the cover 17, spring means 19 and 20, trumpet arm 13, and trumpet 14 to the solid line positions shown in FIGURE 5. It is to be noted that the position of the trumpet arm 13 and trumpet 14 correspond to the previously described raised position A which will stop operation of the machine, as will be described hereinafter.

To eifect stopping of the textile machine, there is provided a first normally-closed switch 32, mounted on the machine frame 10 directly below the trumpet arm 13, which is suitably connected to the electrical circuit of the machine to stop operation of the textile machine when the switch is closed. There is also provided a second normally-open switch 33, mounted on the machine frame 10 directly below the trumpet arm 13, which is similarly electrically connected to stop operation of the textile machine when the switch is closed. The first normallyclosed switch 32 includes a depressible button 34 which when depressed will open the switch to allow the textile machine to operate. open switch 33 includes a depressible button 35 which when depressed will close the switch to stop operationof the textile machine.

For actuating the switches 32 and 33, there is provided first and second adjustable switch actuating means 36 and 37 which comprise threaded screws mounted on and depending from the underside of trumpet arm 13. These screw members 36 and 37 are located to engage the depressible buttons 34 and 35 of switches 32 and 33, respectively. Set screws 40 and 41 may be provided for maintaining the screw members 36 and 37 in the desired adjusted positions. The first switch actuating means 36 is adjustably positioned to extend slightly below the second switch actuating means 37 (FIGURE 3) for purposes hereinafter described.

During normal machine operation, with the trumpet arm 13 and trumpet 14 in the normal operating position as previously described the first and second switch actuating means or threaded screw members 36 and 37 are in the position illustrated in FIGURE 3. In this position the first switch actuating means 36 is in engagement with the depressible button 34 of the first normally-closed switch 32 so that the button 34 is depressed to open the switch 32 and allow the textile machine to operate. The second switch actuating means 37 is out of engagement with the depressible button 35 of the second normally- Conversely, the second normally-.

open switch 33 so that the switch 33 remains open and allows the machine to operate during this normal operating position of the trumpet arm 13. However, if the sliver S decreases a predetermined amount from the predetermined standard of weight per unit length or if it becomes parted, the downward force exerted on the trumpet arm 13 to compress the second spring means 20 is reduced or eliminated, and the second spring means 20 is reduced or eliminated, and the second spring means 20 will thus raise the trumpet arm 13 and trumpet 14 to the raised position A. This upward movement of the trumpet arm 13 to this position will lift the first switch actuating means 36 out of engagement with the depressible button 34 of the first normally-closed switch 32 (FIGURE 6) and thereby permit the switch 32 to close and thus stop operation of the textile machine.

Also, if the coiled sliver S in the can or receptacle 18 exceeds the capacity thereof, it will exert an upward force on coiler mechanism 16 to raise coiler mechanism 16, coiler cover 17, spring means 19 and 20, trumpet arm 13, and first switch actuating means 36. This upward movement of the switch actuating means 36 will move it out of engagement with the depressible button 34 of the first normally closed switch 32 (FIGURE 6) and thereby permit the switch 32 to close and thus stop operation of the textile machine.

Further, if the sliver S increases a predetermined amount from the predetermined standard of weight, a greater downward force will be exerted on the trumpet 14 and the trumpet arm 13 to overcome the compression of heavy spring means 19 and thereby move the trumpet arm 13 and trumpet 14 to the lowered position B. This downward movement of the trumpet arm 13 to this position will cause the second switch actuating means 37 to engage and depress the button 35 of the second normallyopen switch 33 to thus close the switch 33 and thereby stop operation of the textile machine so that the undesirable condition of the sliver S may be corrected.

As will beapparent from the above description, this invention provides apparatus which will automatically shut off a textile machine when the flow of, sliver through trumpet 14 either increases or decreases a predetermined amount from a predetermined standard of weight per unit length or if it becomes parted, or if the coiled sliver in the can 18 exceed the capacity thereof. Also, it is apparent from the above description that all of the adjustable elements, i.e., first and second spring means 19, 20 and first and second switch actuating means 36, 3 7, are carried by the pivoted trumpet arm 13 so that the arm 13 may be swung upwardly to the position shown in FIG- URE 4 for readily accessible manual adjustments thereof. Also, it'is to be noted that the adjustable elements may be screwed into and out of the trumpet arm to vary the action of spring means 19 and 20 and/or to obtain a slower or faster actuation of switches 32 and 33. It may thus be seen, that a highly sensitive stop motion apparatus is provided to stop operation of the textile machine under the three conditions described, which may be adjusted for high speed operation to accommodate various weights and types of textile material and for obtaining the desired standard of uniformity in the textile material.v It may also be seen, that the major components of this stop motion apparatus are so located in the limited space available to minimize any interference with lint.

In the drawings and specification there has been set forth a preferred embodiment of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being defined in the claims.

What is claimed is:

1. In a textile machine having a stationary frame, a

trumpet arm having one end mounted on said frame for 1 pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and means carried by said trumpet arm for normally maintaining said trumpet arm in normal operating position y when the textile material moving through said trumpet is of a predetermined standard of weight per unit length, said trumpet arm being movable to a raised position upon a predetermined decrease in the weight per unit length of the textile material moving through the trumpet and movable to a lowered position upon a predetermined increase in the weight per unit length of textile material moving through the trumpet, second spring means carried by said trumpet arm and biasing said trumpet arm toward said raised position, first and second switch means mounted on said frame and adapted to stop operation of the textile machine, first switch actuating means carried by said trumpet arm and operatively engaging said first switch means to maintain operation of the textile machine when the trumpet arm is in the normal operating position and to actuate said first switch means to stop the textile machine when said trumpet arm moves to the raised position, second switch actuating means carried by said trumpet arm and operatively associated with said second switch means to actuate said second switch means to stop operation of the textile machine when said trumpet arm moves to said lowered position, and said first and second spring means and said first and second switch actuating means being adjustably carried by said trumpet arm and so positioned relative thereto that when the trumpet arm is manually moved to raised position the same are readily accessible for adjustment thereof.

2. In a textile machine having a stationary frame, a trumpet arm having one end mounted on said frame for pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous flow of textile material; the combination of first spring means carried by said trumpet arm for normally maintaining said trumpet arm in normal operating position when the textile material moving through said trumpet is of a predetermined standard of weight per unit length, said trumpet arm being movable to a raised position upon a predetermined decrease in the weight per unit length of the textile material moving through the trumpet and movable to a lowered position upon a predetermined increase in the weight per unit length of textile material moving through the trumpet, second spring means carried by said trumpet arm and biasing said trumpet arm toward said raised position, first and second switch means mounted on said frame and adapted to stop operation of the textile machine, first switch actuating means carried by said trumpet arm and operatively engaging said first switch means to maintain operation of the textile machine when the trumpet arm is in the normal operating position and to actuate said first switch means to stop the textile machine when said trumpet arm moves to the raised position, second switch actuating means carried by said trumpet arm and operatively associated with said second switch means to actuate said sec- 0nd switch means to stop operation of the textile machine when said trumpet arm moves to said lowered position, and said first and second spring means comprise compression springs and means adjustably mounting said compression springs on and depending from the underside of said trumpet arm and for varying the resiliency and actuation of the springs to accommodate various weights and types of textile material.

3. In a textile machine according to claim 2, in which said compression spring in said first spring means is a heavy compression spring and said compression spring in said second spring means is a light compression spring.

4. In a textile machine having a stationary frame, a trumpet arm having one end mounted on said frame for pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous fiow of textile material; the combination of first spring means carried by said trumpet arm for normally maintaining said trumpet arm in normal operating position when the textile material moving through said trumpet is of a'predetermined standard of weight per unit length, said trumpet arm being movable to a raised position upon a predetermined decrease in the weight per unit length of the textile material moving through the trumpet and mOvable to a lowered position upon a predetermined increase in the weight per unit length of textile material moving through the trumpet, second spring means carried by said trumpet arm and biasing said trumpet arm toward said raised position, first and second switch means mounted on said frame and adapted to stop operation of the textile machine, first switch actuating means carried by said trumpet arm and operatively engaging said first switch means to maintain operation of the textile machine when the trumpet arm is in the normal operating position and to actuate said first switch means to stop the textile machine when said trumpet arm moves to the raised posi tion, second switch actuating means carried by said trum- .pet arm and operatively associated with said second switch means to actuate said second switch means to stop operation of the textile machine when said trumpet arm moves to said lowered position, and each of said first and second spring means comprising a threaded screw member adjustably retained in the underside of said trumpet arm, a collar member slidably retained on said screw member and extending beyond the free end thereof, and a compression spring disposed between said collar member and said trumpet arm.

5. In a textile machine having a stationary frame, a trumpet arm having one end mounted on said frame for pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous flow of textile material; the combination of first spring means comprising a compression spring adjustably mounted on and depending from the underside of said trumpet arm for normally maintaining said trumpet arm and said trumpet in normal operating position when the textile material moving through said trumpet is of a predetermined standard weight per unit length, said trumpet being movable to a raised position upon a predetermined decrease in the weight per unit length of the textile material moving through the trumpet and movable to a lowered position upon a predetermined increase in the weight per unit length of the textile material moving through the trumpet, second spring means comprising a compression spring adjustably mounted on and depending from the underside of said trumpet arm and biasing said trumpet arm toward said raised position, first and second switch means mounted on said frame and disposed beneath said trumpet arm and adapted to stop operation of the textile machine, first switch actuating means adjustably mounted on and depending from the underside of said trumpet arm and operatively engaging said first switch means to maintain operation of the textilemachine when the trumpet arm is in the normal operating position and to actuate said first switch means to stop the textile machine when said trumpet arm moves to the raised position, and second switch actuating means mounted on and depending from the underside of said trumpet arm and operatively associated with said second switch means to actuate said second switch means to stop operation of the textile machine when said trumpet arm moves to said lowered position.

6. In a textile machine having a stationary frame, a trumpet arm having one end mounted on said frame for pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous flow of textile material; the combination of first spring arm being movable to a raised position upon a predeter- 1 mined decrease in the weight per unit length of the textile material moving through the trumpet and movable to a lowered position upon a predetermined increase in the weight per unit length of textile material moving through the trumpet, second spring means comprising a compression spring adjustably mounted on and depending from the underside of said trumpet arm and biasing said trumpet arm toward said raised position, first and second switch means mounted on said frame below said trumpet arm and adapted to stop operation of the textile machine, said first switchmeans having a depressible button which when depressed opens said switch to maintain operation of the textile machine, said second switch means having a depressible button which when depressed closes said switch to stop operation of the textile machine, first switch actuating means adjustably mounted on and depending from the underside of said trumpet arm and adapted to depress said button in said first switch means to open said switch when said trumpet arm is in said normal operating position, second switch actuating means adjustably mounted on and depending from the underside of said trumpet arm and adapted to depress said button in said second'switch means to close said switch when said trumpet arm is in said lowered position.

7. In a textile machine having a stationary frame, a trumpet arm having one end mounted on said frame for pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous flow of textile sliver, a vertically movable coiler mechanism associated with said trumpet and adapted to receive and pass therethrough and coil the continuous flow of textile sliver, a can having a predetermined sliver capacity associated with said coiler mechanism and adapted to receive coiled sliver from said coiler mechanism, said coiler mechanism being adapted to be raised when the coiled sliver in the can exceeds the capacity thereof; the combination of resilient means associated with said trumpet arm and said coiler mechanism for normally maintaining said trumpet arm in normal operating position when the textile material moving through said trumpet is of a predetermined standard of weight per unit length and when the coiled sliver in said can has not exceeded the capacity thereof and raised said coiler mechanism, means associated with, said trumpet arm and biasing said trumpet arm toward a raised position, said trumpet arm being movable to the raised position by said biasing means upon a predetermined decrease in the weight per unit length of the textile material moving through said trumpet and at other times movable to a raised position by said resilient means upon the coiled sliver in said can exceeding the capacity thereof and raising said coiler mechanism, said trumpet arm being movable to a lowered position upon a predetermined increase in the weight per unit length of textile material moving through said trumpet, means associated with said trumpet arm and adapted to maintain operation of the textile machine when said trumpet arm is in the normal operating position and to stop operation of the textile machine when said trumpet arm is moved to the raised or lowered position.

8. In a textile machine having a stationary frame, a

trumpet arm having one end mounted on said frame for pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous flow of textile sliver, a vertically movable coiler mechanism associated with said trumpet and adapted to receive and pass therethrough and coil the continuous flow of textile sliver, a can having a predetermined sliver capacity associated with said coiler mechanism and adapted to receive coiled sliver from said coiler mechanism, said coiler mechanism being adapted to be raised when the coiled sliver in the can exceeds the capacity thereof; the combination of resilient means associated with said trumpet arm and said coiler mechanism for normally resiliently maintaining said trumpet arm in a normal operating position located between an abnormal raised and lowered position, said coiler mechanism being movable to raised position, and in turn said trumpet arm being movable to a raised position by said resilient means, upon the coiled sliver in said can exceeding the capacity thereof, stop means associated with said trumpet arm and adapted to maintain operation of the textile machine when said trumpet arm is in the normal operating position and to stop operation of the textile machine when said trumpet arm is moved to the raised position.

9. In a textile machine having a stationary frame, a trumpet arm having one end mounted on said frame for pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous flow of textile sliver, a vertically movable coiler mechanism associated with said trumpet and adapted to receive and pass therethrough and coil the continuous flow.

of textile sliver, a can having a predetermined sliver capacity associated with said coiler mechanism and adapted to receive coiled sliver from said coiler mechanism, said coiler mechanism being adapted to be raised when the coiled sliver in the can exceeds the capacity thereof; the combination of resilient means carried by said trumpet arm and contacting said coiler mechanism for normally maintaining said trumpet arm in normal operating position, said coiler mechanism and said trumpet arm being movable to a raised position upon the coiled sliver in said can exceeding the capacity thereof, stop means mounted on said frame including actuating means carried by said trumpet arm and adapted to stop operation of the textile machine when said coiler mechanism and said trumpet arm are moved to the raised position.

10. In a textile machine having a stationary frame,

a trumpet arm having one end mounted on said frame for pivotal movement about a horizontalaxis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous flow of textile sliver, a vertically movable coiler mechanism associated with said trumpet and adapted to receive and pass therethrough and coil the continuous flow of textile sliver, a can having a predetermined sliver capacity associated with said coiler mechanism and adapted to receive coiled sliver from said coiler mechanism, said coiler mechanism being adapted to be raised when the coiled sliver in the can exceeds the capacity thereof; the combination of first spring means carried by said trumpet arm and contacting said coiler mechanism for normally maintaining said trumpet arm in normal operating position when the textile material moving through said trumpet is of a predetermined standard of weight per unit length and when the coiled sliver in said cam has not exceeded the capacity thereof, second spring means carried by said trumpet arm and biasing said trumpet arm toward a raised position, said trumpet arm being movable to the raised position by said second spring means upon a predetermined decrease in the weight per unit length of the textile material moving through said trumpet and at other times to a raised position upon the coiled sliver in said can exceeding the capacity thereof and raising said coiler mechanism, said trumpet arm being movable to a lowered position upon a predetermined increase in the weight per unit length of textile material moving through said trumpet, first and second switch means mounted on said frame and adapted to stop operation of the textile machine, first switch actuating means carried by said trumpet arm and operatively enid gaging said first switch means to maintain operation of the textile machine when the trumpet arm is in the normal operating position and to actuate said first switch means to stop the textile machine when said trumpet arm moves to the raised position, and second switch actuating means carried by said trumpet arm and operatively associated with said second switch means to actuate said second switch means to stop operation of the textile machine when said trumpet arm moves to said lowered position. i

11. In a textile machine having a stationary frame,

a trumpet arm having one end mounted on said frame for pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous flow of textile sliver, a vertically movable coiler mechanism associated with said trumpet and adapted to receive and pass therethrough and coil the continuous flow of textile sliver, a can having a predetermined sliver capacity associated with said coiler mechanism and adapted to receive coiled sliver from said coiler mechanism, said coiler mechanism being adapted to be raised when the coiled sliver in the can exceeds the capacity thereof; the combination of first spring means carried by said trumpet arm and associated with said coiler mechanism for normally maintaining said trumpet arm in a normal operating position when the textile material moving through said trumpet is of a predetermined standard of weight per unit length and when the coiled sliver in said can has not exceeded the capacity thereof and raised said coiler mechanism, second spring means carried by said trumpet arm and biasing said trumpet arm toward a raised position, said trumpet arm being movable to the raised position by said second spring means upon a predetermined decrease in the weight per unit length of the textile material moving through said trumpet and at other times movable to a raised position by said first spring means upon the coiled sliver in said can exceeding the capacity thereof and raising said coiler mechanism, said trumpet arm being movable to a lowered position upon a predetermined increase in the weight per unit length of textile material moving through said trumpet, means associated with said trumpet arm and adapted to maintain operation of the textile machine when said trumpet arm is in the normal operating position and to stop operation of the textile machine when said trumpet arm is moved to the raised or lowered position.

12. In a textile machine having a stationary frame, a trumpet arm having one end mounted on said frame for pivotal movement about a horizontal axis, a trumpet carried by said trumpet arm and movable therewith and adapted to receive and pass therethrough a continuous flow of textile sliver, a vertically movable coiler mechanism associated with said trumpet and adapted to receive and pass therethrough and coil the continuous flow of textile sliver, a can having a predetermined sliver capacity associated with said coiler mechanism and adapted to receive coiled sliver from said coiler mechanism, said coiler mechanism being adapted to be raised when'the coiled sliver in the can exceeds the capacity thereof; the combination of resilient means associated with said trumpet arm and said coiler mechanism for normally maintaining said trumpet arm in a normal operating position when the textile material moving through said trumpet is of a predetermined standard of weight per unit length and when the coiled sliver in said can has not exceeded the capacity thereof and raised saidcoiler mechanism, means associated with said trumpet arm and biasing said trumpet arm toward a raised position, said trumpet arm being movable to the raised position by said biasing means upon a predetermined decrease inthc weight per unit length of the textile material moving through said trumpet and at other times movable to a raised position by said resilient'means upon the coiled sliver in said can exceeding the capacity thereof and raising said coiler mechanism, said trumpet arm being movable to a lowered position upon a predetermined increase in the weight per unit length of the textile material moving through said trumpet, first and second switch means mounted on said frame and adapted to stop operation of the textile machine, first switch actuating means carried by said trumpet arm and operatively engaging said first switch means to maintain operation of the textile machine when the trumpet arm is in the normal operating position and to actuate-said first switch means to 10 stop the textile machine when said trumpet arm moves to the raised position, and second switch actuating means carried by said trumpet arm and operatively associated With said second switch means to actuate said second means to stop operation of the textile machine when said trumpet arm moves to said lowered position.

5 References Cited by the Examiner UNITED STATES PATENTS 1,990,586 3/1914 Willey et a1. 19-25 2,497,017 2/1950 Shann 1925 X 2,799,057 7/1957 King 19-23 MERVIN STEIN, Primary Examiner.

DORSEY NEWTON, Assistant Examiner. 

1. IN A TEXTILE MACHINE HAVING A STATIONARY FRAME, A TRUMPET ARM HAVING ONE END MOUNTED ON SAID FRAME FOR PIVOTAL MOVEMENT ABOUT A HORIZONTAL AXIS, A TRUMPET CARRIED BY SAID TRUMPET ARM AND MOVABLE THEREWITH AND ADAPTED TO RECEIVE AND PASS THERETHROUGH A CONTINUOUS FLOW OF TEXTILE MATERIAL; THE COMBINATION OF FIRST SPRING MEANS CARRIED BY SAID TRUMPET ARM FOR NORMALLY MAINTAINING SAID TRUMPET ARM IN NORMAL OPERATING POSITION WHEN THE TEXTILE MATERIAL THROUGH SAID TRUMPET IS OF A PREDETERMINED STANDARD OF WEIGHT PER UNIT LENGTH SAID TRUMPET ARM BEING MOVABLE TO A RAISED POSITION UPON A PREDETERMINED DECREASE IN THE WEIGHT PER UNIT LENGTH OF THE TEXTILE MATERIAL MOVING THROUGH THE TRUMPET AND MOVABLE TO A LOWERED POSITION UPON A PREDETERMINED INCREASE IN THE WEIGHT PER UNIT OF TEXTILE MATERIAL MOVING THROUGH THE TRUMPET, SECOND SPRING MEANS CARRIED BY SAID TRUMPET ARM AND BIASING SAID TRUMPET ARM TOWARD SAID RAISED, FIRST AND SECOND SWITCH MEANS MOUNTED ON SAID FRAME AND ADAPTED TO STOP OPERATION OF THE TEXTILE MACHINE, FIRST SWITCH ACTUATING MEANS CARRIED BY SAID TRUMPET ARM AND OPERATIVELY ENGAGING SAID FIRST SWITCH MEANS TO MAINTAIN OPERATION OF THE TEXTILE MACHINE WHEN THE TRUMPET ARM IS IN NORMAL OPERATING POSITION AND TO ACTUATE SAID FIRST SWITCH MEANS TO STOPS THE TEXTILE MACHINE WHEN SAID TRUMPET ARM MOVES TO THE RAISED POSITION, SECOND SWITCH ACTUATING MEANS CARRIED BY SAID TRUMPET ARM AND OPERATIVELY ASSOCIATED WITH SAID SECOND SWITCH MEANS TO ACTUATE SAID SECOND SWITCH MEANS TO STOP OPERATION OF THE TEXTILE MACHINE WHEN SAID TRUMPET ARM MOVES TO SAID LOWERED POSITION, AND SAID FIRST AND SECOND SPRING MEANS AND SAID FIRST AND SECOND SWITCH ACTUATING MEANS BEING ADJUSTABLY CARRIED BY SAID TRUMPET ARM AND SO POSITIONED RELATIVE THERETO THAT WHEN THE TRUMPET ARM IS MANUALLY MOVED TO RAISED POSITION THE SAME ARE READILY ACCESIBLE FOR ADJUSTMENT THEREOF. 